Abstract
Abstract Investigations have been carried out this year at the John Innes Horticultural Institution to elucidate the nature of a disease which affects culinary peas (Pisum sativum). The disease, in this district at all events, is a serious one, killing a large proportion of the crop, but I have no information as to its prevalence in other parts of the country. I have succeeded in proving that the disease in culinary peas is caused by a large bacillus which exhibits a peculiar feature, inasmuch as it is transmitted in the interior of the seeds of the plant. As far as I am aware no analogous instances are known. Owing to the work of Chamberland (1879), Lehmann (1889), Laurent (1891), and others, it has been definitely proved that not only is the interior of a normal seed sterile, but also beans and peas taken under sterile conditions from healthy pods are free from bacteria.
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Claims 3
Claim · model-written summary
The disease killed a large proportion of the pea crop locally.
Verbatim
e0“The disease, in this district at all events, is a serious one, killing a large proportion of the crop”
e1“the disease in culinary peas is caused by a large bacillus which exhibits a peculiar feature, inasmuch as it is transmitted in the interior of the seeds of the plant”
Claim · model-written summary
A large bacillus caused the disease in culinary peas.
Verbatim
e0“the disease in culinary peas is caused by a large bacillus”
Claim · model-written summary
The bacillus was transmitted inside pea seeds.
Verbatim
e0“it is transmitted in the interior of the seeds of the plant”
e1“the disease in culinary peas is caused by a large bacillus which exhibits a peculiar feature, inasmuch as it is transmitted in the interior of the seeds of the plant”